This is a 1.5 mile walk starting from the Brooklyn Botanic Garden that passes a variety of stormwater management installations from a Green Roof to Bioswales to Rainwater Harvesting projects Three community gardens are included on the tour.
Link to map:
https://www.google.com/maps/d/edit?mid=zvm_8ZEllmuI.kTmsQWlUmiC8&usp=sharing